diff --git a/uppsrc/Core/Core.h b/uppsrc/Core/Core.h
index 3060dd820..9fa5c50fe 100644
--- a/uppsrc/Core/Core.h
+++ b/uppsrc/Core/Core.h
@@ -360,14 +360,6 @@ static const MemDiagCls sMemDiagHelper__upp__;
 
 //some global definitions
 
-#if !defined(STLPORT) && _MSC_VER < 1600
-//inline UPP::int64  abs(UPP::int64 x)          { return x < 0 ? -x : x; }
-#endif
-
-#ifdef COMPILER_GCC
-//inline double abs(double x)                   { return fabs(x); }
-#endif
-
 void      RegisterTopic__(const char *topicfile, const char *topic, const char *title, const UPP::byte *data, int len);
 
 #ifdef PLATFORM_WIN32